Pediatrics

A 5-year-old boy is brought to the clinic by his parents for a routine health maintenance visit prior to starting kindergarten. He was born at 39 weeks gestation via uncomplicated spontaneous vaginal delivery. Vital signs include temperature 37.1°C (98.8°F), heart rate 95/min, and blood pressure 92/58 mm Hg. Physical examination reveals a cooperative, healthy-appearing child. His parents report that they recently immigrated, and his last well-child visit was at age 4 months. He is significantly behind on his immunizations, and a catch-up schedule is initiated today. The physician also reviews the boy's developmental history, and the parents recall his past progress clearly. Arrange the following developmental milestones in the expected chronological order of their acquisition in a normally developing child, from earliest to latest.

Match each of the following clinical vignettes describing neonatal respiratory distress to the most likely underlying diagnosis.

An 11-day-old male newborn is brought to the pediatric clinic by his parents due to bilateral eye redness and discharge that began 2 days ago. The infant was born at 39 weeks of gestation via an uncomplicated, unassisted home birth to a 24-year-old mother who recently immigrated and did not receive prenatal care. He has been breastfeeding well and has normal wet diapers. Temperature is $37.1^\circ\text{C}$ ($98.8^\circ\text{F}$), pulse is 130/min, and respiratory rate is 40/min. Physical examination reveals bilateral hyperemic and edematous eyelids with a profuse mucopurulent exudate. The corneas appear clear, and there are no vesicles on the surrounding skin. A Gram stain of the conjunctival exudate reveals abundant leukocytes but no organisms. Which of the following is the most appropriate next step in management?

An 8-year-old boy is evaluated in the pediatric clinic to establish care after his family recently moved from another state. He has a history of moderate persistent asthma. His current daily medications include a medium-dose fluticasone inhaler and a short-acting beta-agonist as needed. Three weeks ago, he was treated for an acute asthma exacerbation with a 4-day course of oral prednisone. He is currently asymptomatic and his lung examination is clear. Review of his medical record indicates he completed all routine immunizations up to age 2, but he missed the vaccine series typically given between ages 4 and 6 years (DTaP, IPV, MMR, and varicella). His father expresses concern about the safety of administering vaccines, particularly live vaccines, given the patient's asthma medications. Which of the following is the most appropriate action regarding this patient's immunizations today?

Match each pediatric patient presentation with the most appropriate immunization recommendation or contraindication based on their specific health status.

A 4-year-old girl is brought to the pediatric clinic for a well-child examination before starting preschool. She has a medical history of end-stage renal disease secondary to severe reflux nephropathy and underwent a deceased-donor kidney transplantation one year ago. Her daily medication regimen includes tacrolimus, mycophenolate mofetil, and low-dose prednisone. During the interview, the mother expresses concern that her daughter might have a developmental delay because she cannot yet skip across the room or tie her own shoelaces. On examination, the girl hops confidently on one foot, clearly copies a cross on a piece of paper, and speaks in fully intelligible sentences. The mother notes she engages frequently in cooperative play with her older brother. Physical examination is unremarkable, with well-healed surgical scars and normal vital signs. A review of her state immunization registry indicates she received all routine childhood vaccinations up to 24 months of age. The mother asks which vaccines her daughter should receive today and if a developmental referral is warranted. Which of the following is the most appropriate management for this patient?

A 14-day-old male neonate, born prematurely at 28 weeks gestation, is being evaluated in the neonatal intensive care unit for temperature instability and increasing episodes of apnea and bradycardia over the past 12 hours. The nursing staff reports that his abdomen has become visibly distended and firm, and he recently passed a stool containing gross blood. His current enteral feeds via orogastric tube have yielded large, bilious residuals. Laboratory studies show leukocytosis, thrombocytopenia, and a metabolic acidosis. An abdominal radiograph reveals dilated bowel loops with linear radiolucencies in the intestinal walls. Which of the following is the most appropriate next step in management?

During routine pediatric well-child examinations, clinicians assess the acquisition of appropriate developmental milestones to ensure normal neurologic maturation. Arrange the following gross motor milestones in the chronological order in which they are typically achieved by a healthy, term, neurotypically developing child.

A 38-week gestation male neonate is born via emergent cesarean delivery complicated by severe umbilical cord prolapse. At delivery, the infant is apneic, flaccid, and cyanotic.

Arrange the following steps of neonatal resuscitation in the correct chronological sequence according to current guidelines.

Correlate each pediatric clinical presentation with the most appropriate primary therapeutic intervention or management strategy.

A 2-month-old girl is brought to the pediatrician by her parents for her first routine well-child visit. She was born at 39 weeks gestation via an uncomplicated spontaneous vaginal delivery. Her mother has a history of severe Crohn disease, which has been well controlled with infliximab therapy. The mother received scheduled infliximab infusions throughout her pregnancy, with the final dose administered 3 weeks prior to delivery. The infant is exclusively breastfed and is gaining weight appropriately. Physical examination reveals an alert, active infant with normal vital signs and no abnormalities. In addition to the second dose of the hepatitis B vaccine, the infant is due for her first doses of the diphtheria, tetanus, and acellular pertussis (DTaP), Haemophilus influenzae type b (Hib), inactivated polio (IPV), pneumococcal conjugate (PCV15), and rotavirus vaccines. Which of the following is the most appropriate recommendation regarding this patient's immunizations today?

Evaluate the following clinical scenarios of infants presenting with hyperbilirubinemia. Pair each clinical description with the most appropriate underlying diagnosis.

A $2$-day-old male newborn is evaluated in the hospital nursery for a newly developed skin rash. He was born at $39$ weeks gestation via uncomplicated vaginal delivery to a $28$-year-old mother who had comprehensive and normal prenatal care. The infant is breastfeeding well and has normal bowel and bladder output. His temperature is $37.0^\circ\text{C}$ ($98.6^\circ\text{F}$), heart rate is $130/\text{min}$, and respiratory rate is $40/\text{min}$. Physical examination reveals a well-appearing, alert neonate. There are multiple splotchy, erythematous macules, several of which have central $1$- to $2$-mm yellow-white pustules, scattered across his chest, back, and proximal thighs. The palms and soles are completely spared. The remainder of the physical examination is unremarkable. Which of the following is the most appropriate next step in management?

A 3-day-old (72 hours of life) male newborn is evaluated in the pediatric clinic for worsening yellowish discoloration of the skin. He was delivered at 39 weeks gestation via an uncomplicated spontaneous vaginal delivery. His birth weight was $3300\text{ g}$; his current weight is $2900\text{ g}$ (approximately $12\%$ weight loss). The mother is exclusively breastfeeding but reports that her breasts feel soft and the infant nurses for only 5 to 10 minutes every 4 to 5 hours before falling asleep. The infant has had two wet diapers and one dark green, sticky stool in the past 24 hours. Vital signs are normal. Physical examination reveals scleral icterus and jaundice extending down to the umbilicus. The anterior fontanelle is slightly sunken and the mucous membranes are dry. Laboratory studies are shown in the table below:

Which of the following is the most appropriate next step in management?

Evaluate the following clinical scenarios describing neonates who experienced complications related to the birth process. Match each clinical presentation with its correct underlying anatomical or pathophysiological mechanism.

A 48-hour-old female newborn is evaluated in the nursery prior to discharge. She was born at 39 weeks and 2 days of gestation via uncomplicated vaginal delivery to a 26-year-old primigravid woman. Birth weight was 3,450 g (7 lb 10 oz). Apgar scores were 8 and 9 at 1 and 5 minutes, respectively. The mother received adequate prenatal care, and her prenatal laboratory results were unremarkable, including a negative screening for group B Streptococcus. Vital signs show a temperature of 36.9°C (98.4°F), heart rate of 135/min, and respiratory rate of 40/min. Physical examination reveals a vigorous, well-appearing infant who is breastfeeding well. Skin examination shows scattered 2- to 3-cm erythematous macules on the chest, back, and proximal extremities. Several of these lesions contain central 1- to 2-mm yellowish-white pustules. The palms and soles are completely spared. The remainder of the physical examination is unremarkable. Which of the following is the most appropriate next step in management?

An infant, aged 21 days, is evaluated at an urgent care clinic for a one-day history of noisy breathing, frequent cough, and nasal congestion. The mother notes the infant's 4-year-old sister recently stayed home from preschool with a cold. The infant was born at 39 weeks gestation via uncomplicated vaginal delivery. Vital signs show a temperature of 37.2°C (99.0°F), heart rate of 155/min, respiratory rate of 62/min, and oxygen saturation of 95% on room air. Physical examination reveals mild subcostal retractions, copious clear nasal discharge, and diffuse bilateral wheezes and crackles on auscultation. Skin examination shows scattered, well-demarcated erythematous macules with small central yellow pustules predominantly on the chest and back. Which of the following is the most appropriate next step in management?

A 39-week gestation male neonate is delivered via emergency cesarean section due to sudden, massive maternal vaginal bleeding and fetal bradycardia (suspected placental abruption). Upon delivery, the neonate is apneic, cyanotic, and completely flaccid. The initial heart rate is 70/min.

Assuming the neonate's heart rate persistently falls and remains below 60/min despite adequate execution of each preceding intervention, arrange the following management steps in the correct chronological sequence according to the standard Neonatal Resuscitation Program (NRP) algorithm.

A term male neonate is delivered at $39$ weeks gestation via spontaneous vaginal delivery. The mother is a $24$-year-old primigravida who received limited prenatal care. Immediately after birth, the infant is apneic, cyanotic, and limp. His heart rate is $80/\text{min}$. Physical examination reveals a barrel-shaped chest and a scaphoid abdomen. Auscultation demonstrates absent breath sounds over the left hemithorax and heart sounds that are loudest over the right midclavicular line. Arrange the following management steps in the most appropriate chronological sequence for this patient.

A 12-day-old male infant is brought to the emergency department by his parents due to decreased oral intake, excessive sleepiness, and a new skin rash that developed 24 hours ago. He was born at 39 weeks of gestation via spontaneous vaginal delivery to a 24-year-old primigravida. A fetal scalp electrode was utilized during labor for continuous heart rate monitoring. The mother's prenatal course was uncomplicated, and her prenatal laboratory results were within normal limits. The infant's temperature is 38.6°C (101.5°F), heart rate is 170/min, and respiratory rate is 45/min. Physical examination reveals an ill-appearing, lethargic infant with a bulging anterior fontanelle and increased tone in all extremities. On the scalp, there are several small, clustered, fluid-filled vesicles on an erythematous base. Which of the following is the most appropriate next step in management?